Concrete block



A. a. HATCH. CONCRETE BLOCK. APPLICATION FILED JAN- 12, I921- 11.1,1922-. SHEET 1.

Patented Apr.

' 2 SHEETS jzzwezzzow aWZ /Zzlf 517m I A. G. HATCH.

CONCRETE BLOCK.

* APPLICATION man JAN. 12. 921.

mmws. Patented Apr. 111, 1922 2 SHEETSSHEET 2.

- Ew n/0r. fi zzzmas. m7? 0mm,

SiTATES ARTHUR G. HATCH, 0F DULUTH, MINNESOTA.

CONCRETE BLOCK.

Leif 3,6863.

Specification of Letters Patent. Patented Apr. iii,

iii-22.

Application filed. January 12, 1921. Serial No. 436,638.

To all whom it may concern Be it known that I, ARTHUR G. HATCH, acitizen of the United States, residing at Duluth, in the county of St.-Louis and State of Minnesota, have invented certain new and usefulImprovements in Concrete Blocks, of which the following is aspecification.

This invention relates to a new and improved concrete blockconstruction, and more specifically to concrete blocks so designed thatthey may be utilized to form a completely bonded double wall withoutnecessity for separate bonding elements.

In concrete wall construction heretofore in use the walls have comprisedblocks extending the full width of the wall or of two separate wallsbonded by additional bonding elements. According to the presentinvention the wall is formed of two separate series of oppositely facedblocks, the blocks being provided with flanges adapted to overlap so asto integrally bond the two face walls.

It is highly desirable in hollow blocks of this character to utilize thefull strength of the material in order to make them as light as possibleand to minimize the amount of the block material necessary. To this endmy invention also comprises the placing of metal reinforcements in theblocks.

While the interior air spaces in walls of this character serve asinsulation, it is at times desirable to provide additional insulatingmeans, and to this end my invention in volves the formation integrallywith the block of an outer insulating surface. This surface may beformedof cinder concrete or other insulating compositions. Thesecompositions mentioned have the addition'alfew ture of being adapted toreceive nails, there by facilitating the attachment of finishingmaterial to the wall.

It is an object of the present invention to provide a new and improvedwall block adapted to form with uniform blocks a fully bonded doublewall.

It is a further object to provide a wall constructed in this manner. inwhich fully isolated airspaces are provided.

It is an additional object to provide a block which is reinforced toutilize the material to the best advantage and which is provided withinsulating material forming an integral part thereof.

Other and further objects will appear as the description proceeds.

I have illustrated the preferred embodiment of my invention in theaccompanying drawings, in which- Figure 1 is a fragmentary perspectiveview showing a wall formed with one type of blocks covered by myinvention;

Figure 2 is a plan View of one of the blocks used in Figure 1; I

Fi ure 3 is a view, similar to Figure 1, showlng another form of block;

Figure 4 is a plan view of one of the blocks of Figure 3;

Figure 5 is a face view of one of the blocks of Figure 3;

Figure 6 is a perspective showing still another form of my blockconstruction;

Figure 7 is a plan view of one of the blocks used in Figure 6;

Figure 8 is a face view of the block of Figure 7 Figure 9 is an end viewofthe block of Figure 7;

Figure 10 is a plan view of a further modified form of block;

Figure 11 is a face view of Figure 10; and

Figure 12 is an end view of Figure 10.

The form of block shown iniFigures 1 and 2 is provided with the faceportion 13, the top flange 14:, bottom flange 15, and upright flanges16. As shown in Figure 1,'these blocks are assembled in the wall in suchman ner that the flanges 1 1 and 15 are reversed in adjacent blocks. Theflanges 15' are of greater width than the flanges 14: and the flanges 15overlap in adjacent courses'in the wall, thus completely bonding the twowall faces and dividing the air space into completely closed sections.

As shown in Figure 1, the wall is su orted upon a floor 16 andfoundation 1 he special face blocks 18 may be provided at the floorlevel.

The block inFigures 3 to 5 is provided with the face portion 19, lateralflange .20, and vertical flanges 21. These blocks as shown are assembledin a manner generally similar to that of Figure 1. Theflanges 20 areoppositely faced and overlap in adjacent courses. 'The vertical flanges21 are bonded to the flanges 20 of adjacent blocks and thus add to thestability and strength of the wall.

In the form of the construction shown in Figures 6 to 9, the block isprovided with similar upper and lower flanges 22', these flanges beingsubstantially triangular in form, the triangle being an isosceles onewith its apex opposite the center of the face of the block. They areprovided with central cross flanges 26 and end flanges" 27; These blocksare placed in the wall as shown in Figure 6, the opposite blocks indiesame course being placed in break-joint relation,

groove aids the mortar in bonding the blocks.

In Figures 10 to 12 a block similar in outward design to that of Figures6 to 9 has been shown. This block, however, is provided with an outerface 24 which is composed of insulatin material such as cinder concrete.This Tay'er of material is placed in the mold at the, same time with therest of the block and is formed integrally therewith. This block,further, has placed in it a reinforcing mesh 25 preferably formed ofsteel wire or light steel rods.

The ends of the mesh are turned into the end flanges 12, as shown inFigure 10, to aid in strengthening these flanges and in bonding thereinforcement in the block. This reinforcement greatly increases thestrength of the block and permits the use of a block withwebsgof asmaller thickness than is possible without the reinforcement.

.All of the forms'of blocks shown have the common feature that with themdoubleface Walls integrally bonded. and provided with closed air spacesmay be formed, No 7 special bonding blocks are required and the body ofthe wall structure is formed of blocks of a single type. This greatlyfacilitates the production of blocks and the construction of the wall.

I claim: I I

1. A building block having a face portion and bonding flanges extendingtherefrom and adapted to bond oppositely faced blocks in adjacentcourses, certain of the flanges having substantially the shape-of anisosceles triangle, the apex being; opposite the center of the faceportion of the block, and the base of the trlangle extending the fulllength of the block.

2. A building block having a face portion and bonding flai igesextending therefrom and adapted to bond oppositely faced blocks inadjacent courses, certain of the bonding flanges being triangularinshape,

the remaining flanges being comprehended within the contour of saidtriangular flanges.

8. In a wall construction, building blocks having face portions andflanges extending therefrom, portions of the flanges being of greaterlateral extentthan other portions,

the blocks being oppositely faced in the wall in such manner that flangeportions of greater extent in each course overlap flange portions ofblocks in adjacent courses.

4. In a wall construction, building blocks having :taee' portions andflanges extending theretronn'the blocks being disposed in the wall withtheir flanges extending inwardly, the flangesupon blocksof one courseoverlapping flanges of oppositely faced blocks in adjacent courses, theoverlapping flanges having contii'uious contact and means joining theflanges whereby separated, longitudinally extending air spaces areformed.

Signed at Duluth, day of January, 1921.

ARTHUR e. Enron.

Minnesota, this flit-h

